CWNU 285

0.36 UTI

0.29

C_N

1.0

C_dens

0.5

C_C3

0.0

C_lit

1.0

C_dup

C3 classification BB

Number of members (P>50%) 29

Radius (P>50% members) 4.6 [arcmin]

C_N 0.29 Poorly populated
C_dens 1.0 Very dense
C_C3 0.5 Intermediate quality
C_lit 0.0 Rarely studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

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CWNU 285 is a poorly populated, very dense object of intermediate C3 quality. Its parallax locates it at a relatively close^* distance, near the mid-plane, affected by moderate extinction. It is catalogued as a very metal-poor, intermediate-age cluster (see Parameters). It is rarely studied in the literature.

(*): The parallax distance estimate (~1.07 kpc) differs significantly from the median photometric distance (~0.81 kpc).

Note: This object shares a large percentage of members with 2 later reported entries. See table with shared members information.

Close Moderate extinction Very metal-poor Intermediate age

Data

🔍 Search references for CWNU 285 in: SciX Simbad

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Reference	Year	RA [deg]	DEC [deg]	Plx [mas]	pmRA [mas/yr]	pmDE [mas/yr]	Rv [km/s]
UCC	–	255.626	-42.88	0.933	0.486	-2.481	5.803
He et al.	2022	255.623	-42.886	0.931	0.455	-2.435	–
He et al.	2022	255.628	-42.881	0.94	0.41	-2.48	–

💡 Note: The UCC values are estimated from its identified members.

Reference	Year	Dist [kpc]	Av [mag]	DAv [mag]	Age [Myr]	[Fe/H] [dex]	Mass [Msun]	Bfr	BSS
He et al.	2022	–	2.80	–	32	–	–	–	–
He et al.	2022	0.81	2.52	–	501	-1.335	–	–	–

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
CWWDL 14391	100.0	255.6	-42.88	0.93	0.49	-2.45	5.05	0.12
Theia 2341	100.0	255.6	-42.89	0.93	0.49	-2.45	5.05	0.03

💡 Note: The % column shows the percentage of members that CWNU 285 shares with each listed object.

Visualization

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